S Viemeister wrote:
>
> On 8/31/2019 10:00 AM, Ophelia wrote:
> >
> > Oh my!!! You have put me off Pyrex for good. I don't have a lot and
> > have been using it for decades but ...
> >
> The _European-made_ Pyrex is still borosilicate - currently, it's just
> the _US_ stuff which explodes...

Even in the US with the very old borosilicate Pyrex, it can
happen. The glass gets stressed over the years just from normal
use. What doesn't break it at the time, accumulates as pent up
energy. Eventually one event will release that energy and it
explodes. Earthquakes are very similar. A little movement does
nothing but add more stress. Eventually the stress is too much
and....earthquake.

I had an old Pyrex baking dish literally explode on me years ago
when I didn't use it properly. It ruined my entire dinner as near
the stove were dishes of other food. I'll tell that in another
post sometime.